Is still the sort of thing that could bite the space industry in the butt later. Remember, obnoxious levels of legal liability have done in different areas of the aircraft industry many times over the past century.

Under www.xprizenews.com are several articles about The da Vinci projects reporting that the team is looking for an insurance since several weeks. So they know the requirement of the license really since a long time and didn't waste time.

According to these articles the reason for the current lack of the insurance is money and price.